#table {
    font-size: 20px;
}

#table thead,
#table tbody,
#table tr {
    display: block;
    width: 600px;
    border-spacing: 0;
    border-collapse: collapse;
}

#table tbody {
    height: 100px;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}

#table tbody td,
#table thead th,
#table tfoot th,
#table tfoot td {
    display: block;
    border: 1px solid black;
    width: 200px;
    float: left;
    box-sizing: border-box;
}